Russell’s theory of descriptions was introduced in his paper “On Denoting” (Russell 1905) published in the journal Mind. Russell’s theory provides the logical form of sentences of the form ‘The \(F\) is \(G\)’ where ‘The \(F\)’ is called a definite description in contrast with ‘An F’ which is an indefinite description. The analysis proposes that ‘The \(F\) is \(G\)’ is equivalent to ‘There is one and only one \(F\) and it is \(G\)’. Given this account, the logical properties of descriptions can